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what spark plugs are u guys running?

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Old Feb 4, 2010 | 10:15 AM
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Talking what spark plugs are u guys running?
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Old Feb 4, 2010 | 10:39 AM
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i have ac delco iridium right now but i just added a little surprise behind my seat so i will be running ngks
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Old Feb 4, 2010 | 11:14 AM
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n/a--TR55ix

FI--TR6ix
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Old Feb 4, 2010 | 11:20 AM
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Ngk tr55

Originally Posted by 8.1 HD
n/a--TR55ix

FI--TR6ix
You're wasting your money on getting the iridiums when you're running boost, plus those tips like to break off pretty easy. I'd use the coppers if I were you.
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Old Feb 4, 2010 | 11:32 AM
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i use tr5s....... when get the spray installed i will run tr6s
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Old Feb 4, 2010 | 03:33 PM
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ngk tr55 here also
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Old Feb 4, 2010 | 03:44 PM
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NGK TR6 plugs here.
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Old Feb 4, 2010 | 05:26 PM
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If you want an inexpensive plug that works well in our trucks, you can't beat the copper NGK TR55's gapped between .050 and 060. If you're looking for longevity out of your spark plugs go with either the Delco iridiums or the NGK TR55ix. The gap for the Delco is .040, not sure of the NGK, but it may be the same exact plug with different packaging, as I've seen Delco plugs that are marked NGK. This is for NA applications...NGK TR6's are the favorite for boosted applications.
Last edited by budhayes3; Feb 5, 2010 at 10:10 PM.
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Old Feb 4, 2010 | 06:21 PM
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im running the delco iridiums also.
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Old Feb 4, 2010 | 06:23 PM
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no plugs...runs on hamsters
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